A study from the University of Southern California has found people using their nondominant hand to eat snack food reduced about 30% of their total intake, compared with those using their dominant hands.

Researcher David Neal, who was an assistant professor in psychology at the time of the study, says:

"If people disrupt the physical sequence of action that is in automatic eating, that’s one way to gain some control.”

The findings were a result of an initial study on the effect a snacker's environment has on their consumption.